/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/buffer-mult-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-09 19:21:20,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-09 19:21:20,601 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-09 19:21:20,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-09 19:21:20,661 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-09 19:21:20,661 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-09 19:21:20,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-09 19:21:20,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-09 19:21:20,673 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-09 19:21:20,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-09 19:21:20,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-09 19:21:20,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-09 19:21:20,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-09 19:21:20,683 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-09 19:21:20,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-09 19:21:20,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-09 19:21:20,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-09 19:21:20,702 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-09 19:21:20,703 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-09 19:21:20,704 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-09 19:21:20,707 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks.epf [2022-02-09 19:21:20,745 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-09 19:21:20,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-09 19:21:20,745 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-09 19:21:20,745 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-09 19:21:20,746 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-09 19:21:20,746 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-09 19:21:20,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-09 19:21:20,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-09 19:21:20,747 INFO L138 SettingsManager]: * Use SBE=true [2022-02-09 19:21:20,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-09 19:21:20,748 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-09 19:21:20,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-09 19:21:20,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-09 19:21:20,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-09 19:21:20,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-09 19:21:20,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-09 19:21:20,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-09 19:21:20,749 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-09 19:21:20,749 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-09 19:21:20,749 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-09 19:21:20,749 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-09 19:21:20,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-09 19:21:20,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-09 19:21:20,750 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-09 19:21:20,750 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-09 19:21:20,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 19:21:20,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-09 19:21:20,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-09 19:21:20,751 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-09 19:21:20,751 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-09 19:21:20,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-09 19:21:20,751 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-09 19:21:20,751 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-09 19:21:20,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-09 19:21:20,751 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-09 19:21:20,752 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-09 19:21:20,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-09 19:21:20,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-09 19:21:20,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-09 19:21:20,997 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-09 19:21:20,999 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-09 19:21:21,000 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/buffer-mult-alt.wvr.bpl [2022-02-09 19:21:21,001 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/buffer-mult-alt.wvr.bpl' [2022-02-09 19:21:21,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-09 19:21:21,025 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-09 19:21:21,026 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-09 19:21:21,026 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-09 19:21:21,026 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-09 19:21:21,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:21:21" (1/1) ... [2022-02-09 19:21:21,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:21:21" (1/1) ... [2022-02-09 19:21:21,055 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-09 19:21:21,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-09 19:21:21,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-09 19:21:21,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-09 19:21:21,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-09 19:21:21,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:21:21" (1/1) ... [2022-02-09 19:21:21,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:21:21" (1/1) ... [2022-02-09 19:21:21,066 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:21:21" (1/1) ... [2022-02-09 19:21:21,066 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:21:21" (1/1) ... [2022-02-09 19:21:21,069 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:21:21" (1/1) ... [2022-02-09 19:21:21,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:21:21" (1/1) ... [2022-02-09 19:21:21,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:21:21" (1/1) ... [2022-02-09 19:21:21,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-09 19:21:21,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-09 19:21:21,075 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-09 19:21:21,075 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-09 19:21:21,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:21:21" (1/1) ... [2022-02-09 19:21:21,082 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 19:21:21,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 19:21:21,105 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-09 19:21:21,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-09 19:21:21,138 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-09 19:21:21,138 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-09 19:21:21,138 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-09 19:21:21,138 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-09 19:21:21,139 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-09 19:21:21,139 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-09 19:21:21,139 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-09 19:21:21,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-09 19:21:21,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-09 19:21:21,139 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-09 19:21:21,139 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-09 19:21:21,139 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-09 19:21:21,140 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-02-09 19:21:21,140 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-09 19:21:21,140 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-09 19:21:21,141 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-09 19:21:21,183 INFO L234 CfgBuilder]: Building ICFG [2022-02-09 19:21:21,184 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-09 19:21:21,328 INFO L275 CfgBuilder]: Performing block encoding [2022-02-09 19:21:21,352 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-09 19:21:21,352 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-09 19:21:21,355 INFO L202 PluginConnector]: Adding new model buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 07:21:21 BoogieIcfgContainer [2022-02-09 19:21:21,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-09 19:21:21,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-09 19:21:21,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-09 19:21:21,363 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-09 19:21:21,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:21:21" (1/2) ... [2022-02-09 19:21:21,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1611c7 and model type buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 07:21:21, skipping insertion in model container [2022-02-09 19:21:21,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 07:21:21" (2/2) ... [2022-02-09 19:21:21,370 INFO L111 eAbstractionObserver]: Analyzing ICFG buffer-mult-alt.wvr.bpl [2022-02-09 19:21:21,376 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-09 19:21:21,376 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-09 19:21:21,376 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-09 19:21:21,376 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-09 19:21:21,453 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-09 19:21:21,510 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 19:21:21,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 19:21:21,511 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-09 19:21:21,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-09 19:21:21,553 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-09 19:21:21,559 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-09 19:21:21,559 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-09 19:21:21,568 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 35 transitions, 102 flow [2022-02-09 19:21:21,670 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 635 states, 634 states have (on average 3.889589905362776) internal successors, (2466), 634 states have internal predecessors, (2466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 19:21:21,791 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1440 transitions and produced 1355 states. [2022-02-09 19:21:21,793 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 19:21:21,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 19:21:21,802 INFO L85 PathProgramCache]: Analyzing trace with hash 2129735794, now seen corresponding path program 1 times [2022-02-09 19:21:21,811 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 19:21:21,812 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022719587] [2022-02-09 19:21:21,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 19:21:21,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 19:21:22,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 19:21:25,385 INFO L134 CoverageAnalysis]: Checked inductivity of 5228 backedges. 4644 proven. 578 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-09 19:21:25,386 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 19:21:25,386 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022719587] [2022-02-09 19:21:25,387 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022719587] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 19:21:25,387 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735484313] [2022-02-09 19:21:25,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 19:21:25,388 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 19:21:25,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 19:21:25,395 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 19:21:25,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-09 19:21:25,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 19:21:25,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 62 conjunts are in the unsatisfiable core [2022-02-09 19:21:25,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 19:21:29,326 INFO L134 CoverageAnalysis]: Checked inductivity of 5228 backedges. 5212 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-02-09 19:21:29,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 19:21:32,386 INFO L134 CoverageAnalysis]: Checked inductivity of 5228 backedges. 5212 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-02-09 19:21:32,387 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735484313] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 19:21:32,387 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 19:21:32,387 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [78, 56, 56] total 184 [2022-02-09 19:21:32,389 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734353564] [2022-02-09 19:21:32,390 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 19:21:32,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 185 states [2022-02-09 19:21:32,396 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 19:21:32,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 185 interpolants. [2022-02-09 19:21:32,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8567, Invalid=25473, Unknown=0, NotChecked=0, Total=34040 [2022-02-09 19:21:32,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 19:21:32,441 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 19:21:32,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 185 states, 185 states have (on average 3.854054054054054) internal successors, (713), 184 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 19:21:32,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 19:21:43,337 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3685 transitions and produced 3313 states. [2022-02-09 19:21:43,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 217 states. [2022-02-09 19:21:43,354 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-09 19:21:43,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-02-09 19:21:43,538 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 19:21:43,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 19:21:43,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1337619708, now seen corresponding path program 2 times [2022-02-09 19:21:43,540 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 19:21:43,540 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544595409] [2022-02-09 19:21:43,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 19:21:43,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 19:21:43,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 19:21:51,583 INFO L134 CoverageAnalysis]: Checked inductivity of 30228 backedges. 12564 proven. 17653 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-09 19:21:51,583 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 19:21:51,583 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544595409] [2022-02-09 19:21:51,583 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544595409] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 19:21:51,583 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810463479] [2022-02-09 19:21:51,584 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 19:21:51,584 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 19:21:51,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 19:21:51,588 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 19:21:51,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-09 19:21:51,803 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 19:21:51,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 19:21:51,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 1568 conjuncts, 205 conjunts are in the unsatisfiable core [2022-02-09 19:21:51,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 19:22:01,742 INFO L134 CoverageAnalysis]: Checked inductivity of 30228 backedges. 24374 proven. 5839 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-02-09 19:22:01,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 19:22:05,089 INFO L134 CoverageAnalysis]: Checked inductivity of 30228 backedges. 24374 proven. 5839 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-02-09 19:22:05,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810463479] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 19:22:05,089 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 19:22:05,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [156, 126, 126] total 329 [2022-02-09 19:22:05,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238211598] [2022-02-09 19:22:05,090 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 19:22:05,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 330 states [2022-02-09 19:22:05,092 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 19:22:05,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 330 interpolants. [2022-02-09 19:22:05,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27617, Invalid=80953, Unknown=0, NotChecked=0, Total=108570 [2022-02-09 19:22:05,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 19:22:05,114 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 19:22:05,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 330 states, 330 states have (on average 4.566666666666666) internal successors, (1507), 329 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 19:22:05,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 217 states. [2022-02-09 19:22:05,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 19:22:29,450 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5711 transitions and produced 5076 states. [2022-02-09 19:22:29,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 217 states. [2022-02-09 19:22:29,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 350 states. [2022-02-09 19:22:29,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-09 19:22:29,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 19:22:29,652 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 19:22:29,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 19:22:29,653 INFO L85 PathProgramCache]: Analyzing trace with hash 2140478312, now seen corresponding path program 3 times [2022-02-09 19:22:29,653 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 19:22:29,653 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237343736] [2022-02-09 19:22:29,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 19:22:29,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 19:22:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 19:22:49,585 INFO L134 CoverageAnalysis]: Checked inductivity of 75235 backedges. 35069 proven. 40155 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-09 19:22:49,585 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 19:22:49,585 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237343736] [2022-02-09 19:22:49,586 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237343736] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 19:22:49,586 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978479922] [2022-02-09 19:22:49,586 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-09 19:22:49,586 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 19:22:49,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 19:22:49,592 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 19:22:49,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-09 19:22:50,294 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 81 check-sat command(s) [2022-02-09 19:22:50,294 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 19:22:50,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 25 conjunts are in the unsatisfiable core [2022-02-09 19:22:50,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 19:22:53,894 INFO L134 CoverageAnalysis]: Checked inductivity of 75235 backedges. 27927 proven. 1273 refuted. 0 times theorem prover too weak. 46035 trivial. 0 not checked. [2022-02-09 19:22:53,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 19:22:56,350 INFO L134 CoverageAnalysis]: Checked inductivity of 75235 backedges. 27927 proven. 1273 refuted. 0 times theorem prover too weak. 46035 trivial. 0 not checked. [2022-02-09 19:22:56,351 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978479922] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 19:22:56,351 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 19:22:56,351 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [280, 21, 21] total 314 [2022-02-09 19:22:56,351 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212614613] [2022-02-09 19:22:56,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 19:22:56,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 315 states [2022-02-09 19:22:56,353 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 19:22:56,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 315 interpolants. [2022-02-09 19:22:56,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24364, Invalid=74546, Unknown=0, NotChecked=0, Total=98910 [2022-02-09 19:22:56,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 19:22:56,366 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 19:22:56,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 315 states, 315 states have (on average 3.7365079365079366) internal successors, (1177), 314 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 19:22:56,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 217 states. [2022-02-09 19:22:56,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 350 states. [2022-02-09 19:22:56,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 19:23:28,374 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 8158 transitions and produced 6993 states. [2022-02-09 19:23:28,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 217 states. [2022-02-09 19:23:28,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 350 states. [2022-02-09 19:23:28,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 520 states. [2022-02-09 19:23:28,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-09 19:23:28,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 19:23:28,575 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 19:23:28,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 19:23:28,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1469261321, now seen corresponding path program 4 times [2022-02-09 19:23:28,576 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 19:23:28,576 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596089355] [2022-02-09 19:23:28,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 19:23:28,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 19:23:29,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 19:24:08,393 INFO L134 CoverageAnalysis]: Checked inductivity of 144754 backedges. 76129 proven. 68614 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-09 19:24:08,394 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 19:24:08,394 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596089355] [2022-02-09 19:24:08,394 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596089355] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 19:24:08,394 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728569039] [2022-02-09 19:24:08,394 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-09 19:24:08,395 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 19:24:08,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 19:24:08,396 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 19:24:08,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-09 19:24:08,890 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-09 19:24:08,891 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 19:24:08,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 3328 conjuncts, 439 conjunts are in the unsatisfiable core [2022-02-09 19:24:08,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 19:24:54,940 INFO L134 CoverageAnalysis]: Checked inductivity of 144754 backedges. 120157 proven. 24582 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-02-09 19:24:54,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 19:25:10,561 INFO L134 CoverageAnalysis]: Checked inductivity of 144754 backedges. 120157 proven. 24582 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-02-09 19:25:10,562 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728569039] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 19:25:10,562 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 19:25:10,562 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [391, 281, 281] total 795 [2022-02-09 19:25:10,562 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471063896] [2022-02-09 19:25:10,562 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 19:25:10,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 796 states [2022-02-09 19:25:10,566 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 19:25:10,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 796 interpolants. [2022-02-09 19:25:10,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172941, Invalid=459879, Unknown=0, NotChecked=0, Total=632820 [2022-02-09 19:25:10,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 19:25:10,625 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 19:25:10,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 796 states, 796 states have (on average 4.232412060301508) internal successors, (3369), 795 states have internal predecessors, (3369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 19:25:10,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 217 states. [2022-02-09 19:25:10,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 350 states. [2022-02-09 19:25:10,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 520 states. [2022-02-09 19:25:10,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 19:33:50,191 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 11672 transitions and produced 9770 states. [2022-02-09 19:33:50,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 217 states. [2022-02-09 19:33:50,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 350 states. [2022-02-09 19:33:50,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 520 states. [2022-02-09 19:33:50,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 770 states. [2022-02-09 19:33:50,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-09 19:33:50,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 19:33:50,392 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-09 19:33:50,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 19:33:50,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1114572901, now seen corresponding path program 5 times [2022-02-09 19:33:50,393 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 19:33:50,393 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71390348] [2022-02-09 19:33:50,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 19:33:50,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 19:33:54,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2022-02-09 19:34:30,042 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-02-09 19:34:30,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-09 19:34:30,042 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 1909 with TraceHistMax 381,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 299 known predicates. [2022-02-09 19:34:30,044 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-02-09 19:34:30,044 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-02-09 19:34:30,045 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-02-09 19:34:30,045 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-02-09 19:34:30,055 INFO L732 BasicCegarLoop]: Path program histogram: [5] [2022-02-09 19:34:30,057 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-09 19:34:30,057 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-09 19:34:30,060 INFO L202 PluginConnector]: Adding new model buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.02 07:34:30 BasicIcfg [2022-02-09 19:34:30,061 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-09 19:34:30,061 INFO L158 Benchmark]: Toolchain (without parser) took 789035.77ms. Allocated memory was 178.3MB in the beginning and 2.4GB in the end (delta: 2.2GB). Free memory was 136.5MB in the beginning and 966.3MB in the end (delta: -829.8MB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-02-09 19:34:30,062 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.17ms. Allocated memory is still 178.3MB. Free memory is still 137.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-09 19:34:30,063 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.45ms. Allocated memory is still 178.3MB. Free memory was 136.5MB in the beginning and 134.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-09 19:34:30,063 INFO L158 Benchmark]: Boogie Preprocessor took 16.27ms. Allocated memory is still 178.3MB. Free memory was 134.9MB in the beginning and 133.9MB in the end (delta: 987.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-09 19:34:30,063 INFO L158 Benchmark]: RCFGBuilder took 282.02ms. Allocated memory is still 178.3MB. Free memory was 133.9MB in the beginning and 123.9MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-09 19:34:30,064 INFO L158 Benchmark]: TraceAbstraction took 788701.73ms. Allocated memory was 178.3MB in the beginning and 2.4GB in the end (delta: 2.2GB). Free memory was 123.4MB in the beginning and 966.3MB in the end (delta: -843.0MB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-02-09 19:34:30,065 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks [2022-02-09 19:34:30,071 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-09 19:34:30,072 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end Benchmark results are: * Boogie PL CUP Parser took 0.17ms. Allocated memory is still 178.3MB. Free memory is still 137.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 30.45ms. Allocated memory is still 178.3MB. Free memory was 136.5MB in the beginning and 134.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.27ms. Allocated memory is still 178.3MB. Free memory was 134.9MB in the beginning and 133.9MB in the end (delta: 987.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 282.02ms. Allocated memory is still 178.3MB. Free memory was 133.9MB in the beginning and 123.9MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 788701.73ms. Allocated memory was 178.3MB in the beginning and 2.4GB in the end (delta: 2.2GB). Free memory was 123.4MB in the beginning and 966.3MB in the end (delta: -843.0MB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 83]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 1909 with TraceHistMax 381,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 299 known predicates. - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 1909 with TraceHistMax 381,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 299 known predicates. - TimeoutResultAtElement [Line: 76]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 1909 with TraceHistMax 381,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 299 known predicates. - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 1909 with TraceHistMax 381,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 299 known predicates. - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 1909 with TraceHistMax 381,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 299 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 54 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 788.5s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 586.9s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=635occurred in iteration=0, InterpolantAutomatonStates: 1857, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 4.1s SatisfiabilityAnalysisTime, 156.2s InterpolantComputationTime, 6244 NumberOfCodeBlocks, 5800 NumberOfCodeBlocksAsserted, 89 NumberOfCheckSat, 9354 ConstructedInterpolants, 0 QuantifiedInterpolants, 61244 SizeOfPredicates, 0 NumberOfNonLiveVariables, 6806 ConjunctsInSsa, 731 ConjunctsInUnsatCore, 12 InterpolantComputations, 0 PerfectInterpolantSequences, 575943/766335 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown